Third to joseph



(No Model.)

J. P. OOSTIGAN.

PIPE JOINT.

No. 426,924. Patented Apr. 29, 1890 mm/w as.

Is rsrzns co., mwwmmm, msmuarcn n c UNITED STATES PATENT OFFICE.

JOSEPH PATRICK COSTIGAN, OF ST. PAUL, MINNESOTA, ASSIGNOR OF ONE- THIRD TO JOSEPH O. HENRY.

PIPE-JOINT.

SPECIFICATION forming part of Letters Patent No. 426,924, dated April 29, 1890.

Application filed April 3, 1889. Serial No. 305,902. (No model.)

To all whom, it may concern: Like figures designate corresponding parts Be it known that I, JOSEPH PATRICK 008- in all of the figures.

TIGAN, a citizen of the United States, residing In the drawings, 1 represents the section at St. Paul, in the county of Ramsey and State provided with an enlarged mouth or hell 2,

of Minnesota, have invented certain new and into which the end of the other section 3 is useful Improvements in Pipe-Joints; and I do inserted. The interior of the bell is of somede'clare the following to be a full, clear, and what larger diameter than the general outside exact description of the invention, such as diameter of the pipe, and about half-way from will enable others skilled in the art to which the inner to the outer end is providedaflange 4,

IO it appertains to make and use the same, refextending around the interior and having its erence being had to the accompanying drawinner circumference of the same diameter or ings, and to the figures of reference marked slightly greater diameter than that of the end thereon, which form a part of this specificaof the adjacent section. The flange 4 is cut ti naway in several places, (three or more) as r 5 This invention relates to joints for pipes, shown at 5 5, at irregular distances apart. and is especially applicable to such pipes as The end of the adjacent section 3 is provided are used for the conveyance of waste water or with 111 s 6 6, corresponding in form and pogas and the like, in which the adjacent pipesition with the said notches in the flange, for sections are united by means of a bell-and the purpose of passing through said notches 20 male connection. or openings and engaging behind the flange The invention consists in the improved form by the turning of the inserted section in either of the adjacent ends of the sections, whereby direction. The openings and lugs being at they may be placed in position and retained irregular distances apart, the sections cannot relatively to each other without the assistbe separated by accidental displacement,

25 ance of packing or calking, whereby the apthere being always two of the lugs bearing 5 ertures in any two adjacent sections are alagainst the shoulder formed by the inner ways concentric without the necessity of edge of the flange. The sections cannot be special adjustment for that purpose, whereby separated, except by bringing the inserted the strain of retaining the parts in relative section back to its first position, either by re- 0 longitudinal position shall come upon the versing the movement or making a complete pipe-sections directly, and not upon the packturn. It is preferable that the inner section ing, whereby either section may be turned should only be turned to a distance equal to freely with reference to the other section beabout one-half the distance between any two fore calking without risk of uncoupling, and openings, as shown in Fig. 2, by which ar- 3 5 whereby the packing not only looks the secrangement all three of the lugs bear against tions, but also looks itself, thus making a the inner edge of the flange at substantially perfectly tight joint and wholly preventing its middle point. the separation of the sections by any acci- To couple the sections the section 3 is held dental strain, thus making the joint of as at such a position that the lugs 6 6 correspond 40 great strength as any part of the pipe, and with the openings 5 5, and then inserted in in details of construction hereinafter more the bell, the lugs passing through said openfully set forth. ings. The section 3 is then turned in either The invention is illustrated in the accomdirection, when the lugs engage behind the panying drawings, in whichflange, as shown in dotted lines in Fig. 5, a

45 Figure l is a perspective View of the adjasuitable mark being formed on the two seccent ends of two sections constructed in actions to indicate the proper position, as shown cordance with my improvement; and Fig. 2 is at 7 7, Fig. 1. It will be observed that the a cross-section of the joint, showing the mausection 3 is not only locked within the bell 2 ner in which the parts are retained and locked and longitudinal displacement obviated, but

50 in position by means of packing. the two sections are concentric, the face of I00 the lugs 6 6 bearing against the interior surface of the bell, and the surface of the section 3 bearing against the face of the flange 4. By this arrangement any required length of pipe may be laid before any of the joints are packed and all danger of displacement is obviated. The necessity of adjusting the parts of each joint and tamping the same in position before packing is also obviated.

The joint is packed or calked substantially in the usual manner, the entrance to the mouth of the bell around the inserted section being closed, excepta small space at the top, in any convenient manner, and melted lead or similar substance being poured therein. The calking material flows through the openings 5 5 and around the lugs 6 0, filling the entire open space. The bodies of calking material on each side of the flange are united by the material filling the openings, and the two sections are not only locked in place and prevented from turning one Within the other, but the peculiar for 1 assumed by the calking material prevents it from becoming displaced.

I claim as my invention- In a joint for pipes, a pipe-section having a bell at one extremity and an annular flange formed within said bell intermediate between the mouth of the bell and its bottom, whereby annular spaces are formed behind and in front of said flange, said flange having irregularly-spaced openings therethrough, in combination with an adjacent entering pipe-section having irregularly-spaeed exterior lugs corresponding in peripheral position with said openings, respectively, and adapted to enter through said openings the annular space he hind said flange, engage with the shoulder formed by said flange, and turn axially in said annular space to any extent, substantially as setforth, whereby when said pipesections are in a locked position communicating calking-spaoes are formed around said entering pipe-section on both sides of said annular flange.

In testimony whereof I aifix my signature in presence of two Witnesses.

JOSEPH PATRICK COC'IIGAN.

WVitnesse.

\V ALTER HOLCOMB, F. \V. LANE. 

